2010 27" iMac - ambient sensor connection on cpu fan

2010 27" iMac - regarding the ambient sensor connection on cpu fan housing - What is the proper contact position of the sensor with relation to the bracket that secures/holds the sensor in place?


The image below was taken from page 238 of the Apple Technician Guide iMac (27-inch, Mid 2010). There are other images regarding the sensor cable in the document.